加入before after 事件

src/main/java/com/alibaba/excel/ExcelWriter.java

@@ -33,7 +33,7 @@ public class ExcelWriter {
 
     /**
      * Create new writer
-     * 
+     *
      * @param templateInputStream
      *            Append value after a POI file ,Can be null（the template POI filesystem that contains the Workbook
      *            stream)
@@ -57,6 +57,15 @@ public class ExcelWriter {
         excelBuilder = new ExcelBuilderImpl(workbook);
     }
 
+    /**
+     * Create new writer
+     * 
+     * @param workbook
+     */
+    public ExcelWriter(Workbook workbook) {
+        excelBuilder = new ExcelBuilderImpl(workbook);
+    }
+
     /**
      * Create new writer
      *
@@ -184,9 +193,8 @@ public class ExcelWriter {
      * @deprecated please use {@link ExcelWriter#write(List, Sheet)}
      */
     @Deprecated
-    public ExcelWriter write1(List<List<Object>> data, Sheet sheet) {
-        excelBuilder.addContent(data, sheet);
-        return this;
+    public ExcelWriter write1(List data, Sheet sheet) {
+        return write(data, sheet);
     }
 
     /**
@@ -199,9 +207,8 @@ public class ExcelWriter {
      * @deprecated please use {@link ExcelWriter#write(List, Sheet)}
      */
     @Deprecated
-    public ExcelWriter write0(List<List<String>> data, Sheet sheet) {
-        excelBuilder.addContent(data, sheet);
-        return this;
+    public ExcelWriter write0(List data, Sheet sheet) {
+        return write(data, sheet);
     }
 
     /**
@@ -216,9 +223,9 @@ public class ExcelWriter {
      * @deprecated please use {@link ExcelWriter#write(List, Sheet,Table)}
      */
     @Deprecated
-    public ExcelWriter write0(List<List<String>> data, Sheet sheet, Table table) {
-        excelBuilder.addContent(data, sheet, table);
-        return this;
+    public ExcelWriter write0(List data, Sheet sheet, Table table) {
+        return write(data, sheet, table);
+
     }
 
     /**
@@ -233,9 +240,9 @@ public class ExcelWriter {
      * @deprecated please use {@link ExcelWriter#write(List, Sheet,Table)}
      */
     @Deprecated
-    public ExcelWriter write1(List<List<Object>> data, Sheet sheet, Table table) {
-        excelBuilder.addContent(data, sheet, table);
-        return this;
+    public ExcelWriter write1(List data, Sheet sheet, Table table) {
+        return write(data, sheet, table);
+
     }
 
     /**

src/main/java/com/alibaba/excel/analysis/BaseSaxAnalyser.java

@@ -8,21 +8,16 @@ import java.util.Map;
 import java.util.Map.Entry;
 
 import com.alibaba.excel.context.AnalysisContext;
-import com.alibaba.excel.converters.BooleanConverter;
 import com.alibaba.excel.converters.Converter;
 import com.alibaba.excel.converters.ConverterKey;
 import com.alibaba.excel.converters.ConverterRegistryCenter;
-import com.alibaba.excel.converters.DateConverter;
-import com.alibaba.excel.converters.Double2Converter;
-import com.alibaba.excel.converters.DoubleConverter;
-import com.alibaba.excel.converters.FloatConverter;
-import com.alibaba.excel.converters.IntegerConverter;
-import com.alibaba.excel.converters.LongConverter;
-import com.alibaba.excel.converters.StringConverter;
+import com.alibaba.excel.converters.DefaultConverterBuilder;
+import com.alibaba.excel.converters.bigdecimal.BigDecimalBooleanConverter;
+import com.alibaba.excel.converters.bigdecimal.BigDecimalNumberConverter;
+import com.alibaba.excel.converters.string.StringStringConverter;
 import com.alibaba.excel.event.AnalysisEventListener;
 import com.alibaba.excel.event.AnalysisEventRegistryCenter;
 import com.alibaba.excel.event.AnalysisFinishEvent;
-import com.alibaba.excel.metadata.BaseRowModel;
 import com.alibaba.excel.metadata.ExcelHeadProperty;
 import com.alibaba.excel.metadata.Sheet;
 
@@ -52,7 +47,7 @@ public abstract class BaseSaxAnalyser implements ConverterRegistryCenter, Analys
 
     @Override
     public void register(Converter converter) {
-        converters.put(converter.getName(), converter);
+        converters.put(new ConverterKey(converter.supportJavaTypeKey(),converter.supportExcelTypeKey()), converter);
     }
 
     @Override
@@ -61,29 +56,12 @@ public abstract class BaseSaxAnalyser implements ConverterRegistryCenter, Analys
     }
 
     private void registerDefaultConverters() {
-        Double2Converter double2Converter = new Double2Converter();
-        converters.put(ConverterKey.buildConverterKey(double2Converter.supportJavaTypeKey(),
-            double2Converter.supportExcelTypeKey()), double2Converter);
-
-        StringConverter s = new StringConverter();
-        converters.put(s.getName(), s);
-        DateConverter d = new DateConverter(this.analysisContext);
-        converters.put(d.getName(), d);
-        IntegerConverter i = new IntegerConverter();
-        converters.put(i.getName(), i);
-        DoubleConverter dc = new DoubleConverter();
-        converters.put(dc.getName(), dc);
-        LongConverter l = new LongConverter();
-        converters.put(l.getName(), l);
-        FloatConverter f = new FloatConverter();
-        converters.put(f.getName(), f);
-        BooleanConverter b = new BooleanConverter();
-        converters.put(b.getName(), b);
+        converters.putAll(DefaultConverterBuilder.loadDefaultReadConverter());
     }
 
     @Override
-    public Collection<Converter> getConverters() {
-        return converters.values();
+    public Map<ConverterKey, Converter> getConverters() {
+        return converters;
     }
 
     @Override
@@ -130,7 +108,7 @@ public abstract class BaseSaxAnalyser implements ConverterRegistryCenter, Analys
         }
     }
 
-    private void buildExcelHeadProperty(Class<? extends BaseRowModel> clazz, List<String> headOneRow) {
+    private void buildExcelHeadProperty(Class clazz, List<String> headOneRow) {
         ExcelHeadProperty excelHeadProperty =
             ExcelHeadProperty.buildExcelHeadProperty(this.analysisContext.getExcelHeadProperty(), clazz, headOneRow);
         this.analysisContext.setExcelHeadProperty(excelHeadProperty);

src/main/java/com/alibaba/excel/analysis/ExcelAnalyserImpl.java

@@ -3,12 +3,14 @@ package com.alibaba.excel.analysis;
 import java.io.InputStream;
 import java.util.Collection;
 import java.util.List;
+import java.util.Map;
 
 import com.alibaba.excel.analysis.v03.XlsSaxAnalyser;
 import com.alibaba.excel.analysis.v07.XlsxSaxAnalyser;
 import com.alibaba.excel.context.AnalysisContext;
 import com.alibaba.excel.context.AnalysisContextImpl;
 import com.alibaba.excel.converters.Converter;
+import com.alibaba.excel.converters.ConverterKey;
 import com.alibaba.excel.converters.ConverterRegistryCenter;
 import com.alibaba.excel.event.AnalysisEventListener;
 import com.alibaba.excel.exception.ExcelAnalysisException;
@@ -34,7 +36,7 @@ public class ExcelAnalyserImpl implements ExcelAnalyser {
             }
 
             @Override
-            public Collection<Converter> getConverters() {
+            public Map<ConverterKey, Converter> getConverters() {
                 return saxAnalyser.getConverters();
             }
         };

src/main/java/com/alibaba/excel/context/WriteContextImpl.java

@@ -10,7 +10,6 @@ import java.util.Set;
 import java.util.TreeMap;
 
 import org.apache.poi.ss.usermodel.Cell;
-import org.apache.poi.ss.usermodel.IndexedColors;
 import org.apache.poi.ss.usermodel.Row;
 import org.apache.poi.ss.usermodel.Sheet;
 import org.apache.poi.ss.util.CellRangeAddress;
@@ -18,14 +17,12 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import com.alibaba.excel.converters.Converter;
-import com.alibaba.excel.converters.bigdecimal.BigDecimalNumberConverter;
-import com.alibaba.excel.converters.date.DateStringConverter;
+import com.alibaba.excel.converters.DefaultConverterBuilder;
 import com.alibaba.excel.event.NotRepeatExecutor;
 import com.alibaba.excel.event.Order;
 import com.alibaba.excel.exception.ExcelGenerateException;
 import com.alibaba.excel.metadata.CellStyle;
 import com.alibaba.excel.metadata.ExcelHeadProperty;
-import com.alibaba.excel.metadata.Font;
 import com.alibaba.excel.metadata.Head;
 import com.alibaba.excel.metadata.Table;
 import com.alibaba.excel.metadata.TableStyle;
@@ -34,10 +31,12 @@ import com.alibaba.excel.metadata.holder.SheetHolder;
 import com.alibaba.excel.metadata.holder.TableHolder;
 import com.alibaba.excel.metadata.holder.WorkbookHolder;
 import com.alibaba.excel.util.WorkBookUtil;
+import com.alibaba.excel.write.handler.DefaultWriteHandlerBuilder;
+import com.alibaba.excel.write.handler.SheetWriteHandler;
+import com.alibaba.excel.write.handler.WorkbookWriteHandler;
 import com.alibaba.excel.write.handler.WriteHandler;
 import com.alibaba.excel.write.style.RowCellStyleStrategy;
 import com.alibaba.excel.write.style.column.AbstractHeadColumnWidthStyleStrategy;
-import com.alibaba.excel.write.style.column.SimpleColumnWidthStyleStrategy;
 
 /**
  * A context is the main anchorage point of a excel writer.
@@ -73,16 +72,42 @@ public class WriteContextImpl implements WriteContext {
             LOGGER.debug("Begin to Initialization 'WriteContextImpl'");
         }
         initCurrentWorkbookHolder(workbook);
+        beforeWorkbookCreate();
         try {
             currentWorkbookHolder.setWorkbook(WorkBookUtil.createWorkBook(workbook));
         } catch (IOException e) {
             throw new ExcelGenerateException("Create workbook failure", e);
         }
+        afterWorkbookCreate();
         if (LOGGER.isDebugEnabled()) {
             LOGGER.debug("Initialization 'WriteContextImpl' complete");
         }
     }
 
+    private void beforeWorkbookCreate() {
+        List<WriteHandler> handlerList = currentConfigurationSelector.writeHandlerMap().get(WorkbookWriteHandler.class);
+        if (handlerList == null || handlerList.isEmpty()) {
+            return;
+        }
+        for (WriteHandler writeHandler : handlerList) {
+            if (writeHandler instanceof WorkbookWriteHandler) {
+                ((WorkbookWriteHandler)writeHandler).beforeWorkbookCreate();
+            }
+        }
+    }
+
+    private void afterWorkbookCreate() {
+        List<WriteHandler> handlerList = currentConfigurationSelector.writeHandlerMap().get(WorkbookWriteHandler.class);
+        if (handlerList == null || handlerList.isEmpty()) {
+            return;
+        }
+        for (WriteHandler writeHandler : handlerList) {
+            if (writeHandler instanceof WorkbookWriteHandler) {
+                ((WorkbookWriteHandler)writeHandler).afterWorkbookCreate(currentWorkbookHolder);
+            }
+        }
+    }
+
     private void initCurrentWorkbookHolder(com.alibaba.excel.metadata.Workbook workbook) {
         currentWorkbookHolder = new WorkbookHolder();
         currentWorkbookHolder.setWorkbookParam(workbook);
@@ -102,9 +127,9 @@ public class WriteContextImpl implements WriteContext {
         if (workbook.getCustomWriteHandlerList() != null && !workbook.getCustomWriteHandlerList().isEmpty()) {
             handlerList.addAll(workbook.getCustomWriteHandlerList());
         }
-        handlerList.addAll(loadDefaultHandler());
+        handlerList.addAll(DefaultWriteHandlerBuilder.loadDefaultHandler());
         currentWorkbookHolder.setWriteHandlerList(sortAndClearUpHandler(handlerList));
-        Map<Class, Converter> converterMap = loadDefaultConverter();
+        Map<Class, Converter> converterMap = DefaultConverterBuilder.loadDefaultWriteConverter();
         if (workbook.getCustomConverterMap() != null && !workbook.getCustomConverterMap().isEmpty()) {
             converterMap.putAll(workbook.getCustomConverterMap());
         }
@@ -150,28 +175,6 @@ public class WriteContextImpl implements WriteContext {
         return result;
     }
 
-    private List<WriteHandler> loadDefaultHandler() {
-        List<WriteHandler> handlerList = new ArrayList<WriteHandler>();
-        CellStyle headCellStyle = new CellStyle();
-        Font font = new Font();
-        headCellStyle.setFont(font);
-        font.setFontName("宋体");
-        font.setBold(true);
-        headCellStyle.setIndexedColors(IndexedColors.GREY_25_PERCENT);
-        handlerList.add(new RowCellStyleStrategy(headCellStyle, new ArrayList<CellStyle>()));
-        handlerList.add(new SimpleColumnWidthStyleStrategy(20));
-        return handlerList;
-    }
-
-    private Map<Class, Converter> loadDefaultConverter() {
-        Map<Class, Converter> converterMap = new HashMap<Class, Converter>();
-        DateStringConverter dateStringConverter = new DateStringConverter();
-        converterMap.put(dateStringConverter.supportJavaTypeKey(), dateStringConverter);
-        BigDecimalNumberConverter bigDecimalNumberConverter = new BigDecimalNumberConverter();
-        converterMap.put(bigDecimalNumberConverter.supportJavaTypeKey(), bigDecimalNumberConverter);
-        return converterMap;
-    }
-
     /**
      * @param sheet
      */
@@ -195,9 +198,36 @@ public class WriteContextImpl implements WriteContext {
             }
             return;
         }
+
         initCurrentSheetHolder(sheet);
+        beforeSheetCreate();
         // Initialization current sheet
         initSheet(sheet);
+        afterSheetCreate();
+    }
+
+    private void beforeSheetCreate() {
+        List<WriteHandler> handlerList = currentConfigurationSelector.writeHandlerMap().get(SheetWriteHandler.class);
+        if (handlerList == null || handlerList.isEmpty()) {
+            return;
+        }
+        for (WriteHandler writeHandler : handlerList) {
+            if (writeHandler instanceof SheetWriteHandler) {
+                ((SheetWriteHandler)writeHandler).beforeSheetCreate(currentWorkbookHolder, currentSheetHolder);
+            }
+        }
+    }
+
+    private void afterSheetCreate() {
+        List<WriteHandler> handlerList = currentConfigurationSelector.writeHandlerMap().get(SheetWriteHandler.class);
+        if (handlerList == null || handlerList.isEmpty()) {
+            return;
+        }
+        for (WriteHandler writeHandler : handlerList) {
+            if (writeHandler instanceof SheetWriteHandler) {
+                ((SheetWriteHandler)writeHandler).afterSheetCreate(currentWorkbookHolder, currentSheetHolder);
+            }
+        }
     }
 
     private void initCurrentSheetHolder(com.alibaba.excel.metadata.Sheet sheet) {
@@ -313,7 +343,7 @@ public class WriteContextImpl implements WriteContext {
         for (int i = 0; i < headList.size(); i++) {
             Head head = headList.get(i);
             // TODO 创建cell
-            Cell cell = WorkBookUtil.createCell(row, i, null, head.getHeadName(i));
+            Cell cell = WorkBookUtil.createCell(row, i, head.getHeadName(i));
         }
     }
 

src/main/java/com/alibaba/excel/converters/ConverterRegistryCenter.java

@@ -1,8 +1,9 @@
 package com.alibaba.excel.converters;
 
 import java.util.Collection;
+import java.util.Map;
 
 public interface ConverterRegistryCenter {
     void register(Converter converter);
-    Collection<Converter> getConverters();
+    Map<ConverterKey, Converter> getConverters();
 }

src/main/java/com/alibaba/excel/converters/DefaultConverterBuilder.java

@@ -0,0 +1,38 @@
+package com.alibaba.excel.converters;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import com.alibaba.excel.converters.bigdecimal.BigDecimalNumberConverter;
+import com.alibaba.excel.converters.date.DateStringConverter;
+
+/**
+ * Build default handler
+ * 
+ * @author zhuangjiaju
+ */
+public class DefaultConverterBuilder {
+    /**
+     * Load default wirte converter
+     *
+     * @return
+     */
+    public static Map<Class, Converter> loadDefaultWriteConverter() {
+        Map<Class, Converter> converterMap = new HashMap<Class, Converter>();
+        DateStringConverter dateStringConverter = new DateStringConverter();
+        converterMap.put(dateStringConverter.supportJavaTypeKey(), dateStringConverter);
+        BigDecimalNumberConverter bigDecimalNumberConverter = new BigDecimalNumberConverter();
+        converterMap.put(bigDecimalNumberConverter.supportJavaTypeKey(), bigDecimalNumberConverter);
+        return converterMap;
+    }
+
+    /**
+     * Load default read converter
+     *
+     * @return
+     */
+    public static Map<ConverterKey, Converter> loadDefaultReadConverter() {
+        Map<ConverterKey, Converter> converterMap = new HashMap<ConverterKey, Converter>();
+        return converterMap;
+    }
+}

src/main/java/com/alibaba/excel/event/ModelBuildEventListener.java

@@ -1,18 +1,18 @@
 package com.alibaba.excel.event;
 
-import java.util.Collection;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
 import com.alibaba.excel.context.AnalysisContext;
 import com.alibaba.excel.converters.Converter;
-import com.alibaba.excel.event.AnalysisEventListener;
+import com.alibaba.excel.converters.ConverterKey;
+import com.alibaba.excel.enums.CellDataTypeEnum;
+import com.alibaba.excel.exception.ExcelDataConvertException;
 import com.alibaba.excel.exception.ExcelGenerateException;
 import com.alibaba.excel.metadata.CellData;
 import com.alibaba.excel.metadata.ExcelColumnProperty;
 import com.alibaba.excel.metadata.ExcelHeadProperty;
-import com.alibaba.excel.util.TypeUtil;
 
 import net.sf.cglib.beans.BeanMap;
 
@@ -20,8 +20,8 @@ import net.sf.cglib.beans.BeanMap;
  * @author jipengfei
  */
 public class ModelBuildEventListener extends AnalysisEventListener<Object> {
-    private final Collection<Converter> converters;
-    public ModelBuildEventListener(Collection<Converter> converters) {
+    private final Map<ConverterKey, Converter> converters;
+    public ModelBuildEventListener(Map<ConverterKey, Converter> converters) {
         this.converters = converters;
     }
     
@@ -46,10 +46,14 @@ public class ModelBuildEventListener extends AnalysisEventListener<Object> {
             return resultModel;
         }
         Map map = new HashMap();
-        for (int i = 0; i < stringList.size(); i++) {
+        for (int i = 0; i < cellDataList.size(); i++) {
             ExcelColumnProperty columnProperty = excelHeadProperty.getExcelColumnProperty(i);
             if (columnProperty != null) {
-                Object value = convertValue(stringList.get(i), columnProperty);
+                CellData cellData = cellDataList.get(i);
+                if (cellData.getType() == CellDataTypeEnum.EMPTY) {
+                    continue;
+                }
+                Object value = convertValue(cellDataList.get(i), columnProperty.getField().getClass(), columnProperty);
                 if (value != null) {
                     map.put(columnProperty.getField().getName(), value);
                 }
@@ -59,19 +63,17 @@ public class ModelBuildEventListener extends AnalysisEventListener<Object> {
         return resultModel;
     }
 
-    private Object convertValue(CellData cellData, ExcelColumnProperty columnProperty) {
-
-//        columnProperty.getField().getClass(), cellData.getType();
-
-
-        for (Converter c : converters) {
-//            c.convertToJavaData(cellData,columnProperty);
-
-            if (c.support(columnProperty)) {
-                return c.convert(value, columnProperty);
-            }
+    private Object convertValue(CellData cellData, Class clazz, ExcelColumnProperty columnProperty) {
+        Converter converter = converters.get(ConverterKey.buildConverterKey(clazz, cellData.getType()));
+        if (converter == null) {
+            throw new ExcelDataConvertException(
+                "Converter not found, converte " + cellData.getType() + " to " + clazz.getName());
+        }
+        try {
+            return converter.convertToJavaData(cellData, columnProperty);
+        } catch (Exception e) {
+            throw new ExcelDataConvertException("Convert data " + cellData + " to " + clazz + " error ", e);
         }
-        return null;
     }
 
     @Override

src/main/java/com/alibaba/excel/metadata/BaseRowModel.java

@@ -0,0 +1,37 @@
+package com.alibaba.excel.metadata;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.apache.poi.ss.usermodel.CellStyle;
+
+/**
+ * Excel基础模型
+ *
+ * @author jipengfei
+ * @deprecated Now you don't need to extend any classes
+ */
+@Deprecated
+public class BaseRowModel {
+
+    /**
+     * 每列样式
+     */
+    private Map<Integer, CellStyle> cellStyleMap = new HashMap<Integer, CellStyle>();
+
+    public void addStyle(Integer row, CellStyle cellStyle) {
+        cellStyleMap.put(row, cellStyle);
+    }
+
+    public CellStyle getStyle(Integer row) {
+        return cellStyleMap.get(row);
+    }
+
+    public Map<Integer, CellStyle> getCellStyleMap() {
+        return cellStyleMap;
+    }
+
+    public void setCellStyleMap(Map<Integer, CellStyle> cellStyleMap) {
+        this.cellStyleMap = cellStyleMap;
+    }
+}

src/main/java/com/alibaba/excel/metadata/Workbook.java

@@ -61,6 +61,13 @@ public class Workbook {
      * Custom type handler override the default
      */
     private List<WriteHandler> customWriteHandlerList = new ArrayList<WriteHandler>();
+    /**
+     * Write handler
+     * 
+     * @deprecated please use {@link WriteHandler}
+     */
+    @Deprecated
+    private com.alibaba.excel.event.WriteHandler writeHandler;
 
     public ExcelTypeEnum getExcelType() {
         return excelType;
@@ -141,4 +148,12 @@ public class Workbook {
     public void setCustomWriteHandlerList(List<WriteHandler> customWriteHandlerList) {
         this.customWriteHandlerList = customWriteHandlerList;
     }
+
+    public com.alibaba.excel.event.WriteHandler getWriteHandler() {
+        return writeHandler;
+    }
+
+    public void setWriteHandler(com.alibaba.excel.event.WriteHandler writeHandler) {
+        this.writeHandler = writeHandler;
+    }
 }

src/main/java/com/alibaba/excel/metadata/holder/ConfigurationSelector.java

@@ -20,7 +20,7 @@ public interface ConfigurationSelector {
      * 
      * @return
      */
-    List<WriteHandler> writeHandlerList();
+    Map<Class<? extends WriteHandler>, List<WriteHandler>> writeHandlerMap();
 
     /**
      * What converter does the currently operated cell need to execute

src/main/java/com/alibaba/excel/util/WorkBookUtil.java

@@ -51,4 +51,10 @@ public class WorkBookUtil {
         cell.setCellValue(cellValue);
         return cell;
     }
+
+    public static Cell createCell(Row row, int colNum, String cellValue) {
+        Cell cell = row.createCell(colNum);
+        cell.setCellValue(cellValue);
+        return cell;
+    }
 }

src/main/java/com/alibaba/excel/write/builder/ExcelWriterBuilder.java

@@ -14,6 +14,7 @@ import java.util.Map;
 
 import com.alibaba.excel.ExcelWriter;
 import com.alibaba.excel.converters.Converter;
+import com.alibaba.excel.metadata.Workbook;
 import com.alibaba.excel.support.ExcelTypeEnum;
 import com.alibaba.excel.write.handler.WriteHandler;
 
@@ -47,6 +48,13 @@ public class ExcelWriterBuilder {
      * Custom type handler override the default
      */
     private List<WriteHandler> customWriteHandlerList = new ArrayList<WriteHandler>();
+    /**
+     * Write handler
+     *
+     * @deprecated please use {@link WriteHandler}
+     */
+    @Deprecated
+    private com.alibaba.excel.event.WriteHandler writeHandler;
 
     public ExcelWriterBuilder excelType(ExcelTypeEnum excelType) {
         this.excelType = excelType;
@@ -113,8 +121,26 @@ public class ExcelWriterBuilder {
         return this;
     }
 
+    /**
+     * Write handler
+     *
+     * @deprecated please use {@link WriteHandler}
+     */
+    @Deprecated
+    public ExcelWriterBuilder registerWriteHandler(com.alibaba.excel.event.WriteHandler writeHandler) {
+        this.writeHandler = writeHandler;
+        return this;
+    }
+
     public ExcelWriter build() {
-        return new ExcelWriter(templateInputStream, outputStream, excelType, needHead, customConverterMap,
-            customWriteHandlerList);
+        Workbook workbook = new Workbook();
+        workbook.setTemplateInputStream(templateInputStream);
+        workbook.setOutputStream(outputStream);
+        workbook.setExcelType(excelType);
+        workbook.setNeedHead(needHead);
+        workbook.setCustomConverterMap(customConverterMap);
+        workbook.setCustomWriteHandlerList(customWriteHandlerList);
+        workbook.setWriteHandler(writeHandler);
+        return new ExcelWriter(workbook);
     }
 }

src/main/java/com/alibaba/excel/write/handler/DefaultWriteHandlerBuilder.java

@@ -0,0 +1,38 @@
+package com.alibaba.excel.write.handler;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.poi.ss.usermodel.IndexedColors;
+
+import com.alibaba.excel.metadata.CellStyle;
+import com.alibaba.excel.metadata.Font;
+import com.alibaba.excel.write.style.RowCellStyleStrategy;
+import com.alibaba.excel.write.style.column.SimpleColumnWidthStyleStrategy;
+
+/**
+ * Build default handler
+ * 
+ * @author zhuangjiaju
+ */
+public class DefaultWriteHandlerBuilder {
+
+    /**
+     * Load default handler
+     *
+     * @return
+     */
+    public static List<WriteHandler> loadDefaultHandler() {
+        List<WriteHandler> handlerList = new ArrayList<WriteHandler>();
+        CellStyle headCellStyle = new CellStyle();
+        Font font = new Font();
+        headCellStyle.setFont(font);
+        font.setFontName("宋体");
+        font.setBold(true);
+        headCellStyle.setIndexedColors(IndexedColors.GREY_25_PERCENT);
+        handlerList.add(new RowCellStyleStrategy(headCellStyle, new ArrayList<CellStyle>()));
+        handlerList.add(new SimpleColumnWidthStyleStrategy(20));
+        return handlerList;
+    }
+
+}

src/main/java/com/alibaba/excel/write/handler/SheetWriteHandler.java

@@ -1,8 +1,7 @@
 package com.alibaba.excel.write.handler;
 
-import org.apache.poi.ss.usermodel.Workbook;
-
 import com.alibaba.excel.metadata.holder.SheetHolder;
+import com.alibaba.excel.metadata.holder.WorkbookHolder;
 
 /**
  * intercepts handle sheet creation
@@ -16,12 +15,12 @@ public interface SheetWriteHandler extends WriteHandler {
      * 
      * @param writeContext
      */
-    void beforeSheetCreate(Workbook workbook, SheetHolder sheetHolder);
+    void beforeSheetCreate(WorkbookHolder workbookHolder, SheetHolder sheetHolder);
 
     /**
      * called after the sheet is created
      *
      * @param writeContext
      */
-    void afterSheetCreate(Workbook workbook, SheetHolder sheetHolder);
+    void afterSheetCreate(WorkbookHolder workbookHolder, SheetHolder sheetHolder);
 }

src/main/java/com/alibaba/excel/write/handler/WorkbookWriteHandler.java

@@ -1,6 +1,6 @@
 package com.alibaba.excel.write.handler;
 
-import org.apache.poi.ss.usermodel.Workbook;
+import com.alibaba.excel.metadata.holder.WorkbookHolder;
 
 /**
  * intercepts handle Workbook creation
@@ -21,5 +21,5 @@ public interface WorkbookWriteHandler extends WriteHandler {
      *
      * @param writeContext
      */
-    void afterWorkbookCreate(Workbook workbook);
+    void afterWorkbookCreate(WorkbookHolder workbookHolder);
 }

src/test/java/com/alibaba/easyexcel/test/model/WriteModel.java

@@ -1,7 +1,6 @@
 package com.alibaba.easyexcel.test.model;
 
 import com.alibaba.excel.annotation.ExcelProperty;
-import com.alibaba.excel.metadata.BaseRowModel;
 
 import java.math.BigDecimal;
 import java.util.Date;